THE MULTNOMAH COUNTY DRAINAGE DISTRICT PROTECTS LIVES, PROPERTY AND THE ENVIRONMENT BY MAINTAINING OUR LEVEE SYSTEM, MANAGING DRAINAGE, AND RESPONSING TO EMERGENCIES.

MCDD manages the Columbia corridor drainage districts, which include:

Peninsula Drainage District #1 | Peninsula Drainage District #2
Multnomah County Drainage District #1 | Sandy Drainage Improvement Co.

 

Columbia River Data